Vietnam
Ha Long
Weather in Dec
🗓 Season: Cool dry winter
A comfortable in-between month: decent weather, thinner crowds, better prices.
🟡 Shoulder season
What to wear & pack 🎒
Expect warm conditions — days around 23°C, nights near 18°C, ~5 rainy days.
Best time to go
December works, but October or November is the sweet spot for Ha Long.
Best months: October, November, March, April — clear-enough skies and calm seas for cruising the karsts, minus summer’s domestic crowds and storms
Visas & entry 🛂
ℹ️ Entry rules for Vietnam
Set your passport country in Account to see whether you can enter visa-free.
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• Passport must be valid 6+ months beyond arrival.
• Use only evisa.gov.vn — lookalike sites overcharge.
Official Vietnam e-Visa portal ↗ · Vietnam Immigration Department ↗
Guidance checked July 2026. Rules change — always confirm on the official government site before booking. Not legal advice.
Top places to visit
Tap a place for map & background links.
Ha Long Bay overnight cruisesleep among 1,600 limestone islands
Sung Sot (Surprise) Cavecathedral-scale grotto on Bo Hon island
Ti Top Island viewpointthe classic 360° bay panorama
📍 Kayaking Luon Cave lagoonpaddle under a karst arch into a hidden bowl
Adventures nearby 🥾
Hikes, mountains and outdoor days within reach — tap for details.
Cat Ba National Park — Ngu Lam peakjungle ridge walk above the karst archipelago
Kayak the Lan Ha lagoonspaddle through arches into enclosed emerald bowls
Rock climbing on Cat Badeep-water solo over the bay with local guides
Hidden gems 💎
Lan Ha Bay (via Cat Ba)the same karst seascape with a fraction of the boats
💎 Vung Vieng floating villagepearl farms and stilt life far from the marina
Bai Tu Long Baythe quiet northeastern third most itineraries skip
Weather numbers are live climate data; travel notes are curated by WanderWise; photos via Wikipedia/Wikimedia Commons. Verify dates locally — festival timing (especially lunar-calendar events) can shift year to year.